Wyoming Snow Precipitation Update
United States Natural Resources Water and Climate Center
Department of Conservation Portland, Oregon
Agriculture Service
S N O W - P R E C I P I T A T I O N U P D A T E
Based on Mountain Data from NRCS SNOTEL Sites
As of THURSDAY: MARCH 13 , 2014
------------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
------------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 22.6 13.9 163 23.3 18.4 127
BLACK BEAR 8170 37.1 31.8 117 34.4 33.3 103
BLIND BULL SUM 8650 34.1 19.7 173 22.3 17.0 131
COTTONWOOD CREEK 7670 28.7 18.6 154 31.0 21.0 148
EAST RIM DIVIDE 7930 16.6 9.5 175 14.6 10.2 143
GRAND TARGHEE 9260 44.7 32.3 138 33.6 25.8 130
GRANITE CREEK 6770 -M 14.8 * -M 17.6 *
GRASSY LAKE 7265 35.4 28.0 126 33.3 31.5 106
GROS VENTRE SUMMIT 8750 14.2 11.0 129 14.0 11.0 127
GUNSIGHT PASS 9820 19.1 11.7 163 17.5 11.7 150
LEWIS LAKE DIVIDE 7850 34.3 26.8 128 -M 31.0 *
PHILLIPS BENCH 8200 31.7 21.5 147 -M 24.4 *
SALT RIVER SUMMIT 7760 17.3 11.4 152 18.0 14.4 125
SNAKE RIVER STATION 6920 20.1 15.2 132 22.6 19.8 114
SPRING CREEK DIVIDE 9000 32.9 19.8 166 30.0 20.6 146
THUMB DIVIDE 7980 15.8 13.4 118 14.5 15.9 91
TOGWOTEE PASS 9580 29.4 19.7 149 -M 20.9 *
TWO OCEAN PLATEAU 9240 35.9 23.3 154 -M 23.5 *
WILLOW CREEK 8380 36.7 24.3 151 36.5 28.8 127
YOUNTS PEAK 8350 -M 12.5 * -M 13.6 *
----- -----
Basin Index (%) 144 124
MADISON-GALLATIN
BLACK BEAR 8170 37.1 31.8 117 34.4 33.3 103
CANYON 7870 13.0 11.5 113 14.7 14.1 104
MADISON PLATEAU 7750 21.2 19.5 109 21.2 23.0 92
WEST YELLOWSTONE 6700 12.5 9.8 128 13.6 12.4 110
WHISKEY CREEK 6800 15.2 13.4 113 17.8 17.5 102
----- -----
Basin Index (%) 115 101
YELLOWSTONE
BEARTOOTH LAKE 9360 28.0 18.5 151 25.4 17.0 149
BURNT MTN 5880 8.7 4.3 202 15.9 10.3 154
CANYON 7870 13.0 11.5 113 14.7 14.1 104
COLE CREEK 7850 16.9 11.3 150 12.3 10.1 122
EVENING STAR 9200 35.0 21.2 165 34.2 23.6 145
FISHER CREEK 9100 39.1 27.3 143 34.4 27.5 125
NORTHEAST ENTRANCE 7350 13.8 8.7 159 13.7 10.6 129
PARKER PEAK 9400 27.3 16.9 162 22.1 15.1 146
SYLVAN LAKE 8420 21.3 17.2 124 24.1 19.2 126
THUMB DIVIDE 7980 15.8 13.4 118 14.5 15.9 91
TWO OCEAN PLATEAU 9240 35.9 23.3 154 -M 23.5 *
WHITE MILL 8700 30.0 19.3 155 25.6 20.4 125
WOLVERINE 7650 15.0 8.9 169 15.0 10.6 142
----- -----
Basin Index (%) 149 130
WIND RIVER
BURROUGHS CREEK 8750 -M 11.7 * -M 13.6 *
CASTLE CREEK 8400 10.2 -M * 11.9 -M *
COLD SPRINGS 9630 9.9 6.0 165 12.2 8.1 151
DEER PARK 9700 15.1 12.3 123 17.2 16.4 105
HOBBS PARK 10100 13.3 11.1 120 11.9 10.5 113
KIRWIN 9550 17.1 8.0 214 15.6 9.5 164
LITTLE WARM 9370 13.6 8.8 155 15.8 10.6 149
OWL CREEK 8975 6.4 4.4 145 6.4 4.7 136
SOUTH PASS 9040 15.1 12.7 119 14.0 14.7 95
ST. LAWRENCE ALT 8620 4.3 5.9 73 7.8 7.1 110
TOGWOTEE PASS 9580 29.4 19.7 149 -M 20.9 *
TOWNSEND CREEK 8700 7.0 7.5 93 7.7 9.5 81
----- -----
Basin Index (%) 136 119
BIGHORN BASIN
BALD MTN. 9380 21.1 16.0 132 16.3 14.1 116
BEAR TRAP MEADOW 8200 9.2 4.7 196 9.2 6.7 137
BONE SPRINGS DIV 9350 17.8 13.4 133 14.3 12.7 113
GRAVE SPRINGS 8550 10.0 7.6 132 10.2 8.5 120
KIRWIN 9550 17.1 8.0 214 15.6 9.5 164
MARQUETTE 8760 11.3 -M * 11.0 -M *
MIDDLE POWDER 7760 13.5 9.0 150 11.1 9.5 117
OWL CREEK 8975 6.4 4.4 145 6.4 4.7 136
POWDER RIVER PASS 9480 13.8 8.6 160 14.5 10.3 141
SHELL CREEK 9580 16.5 12.3 134 14.2 11.3 126
TIMBER CREEK 7950 5.8 4.1 141 7.3 5.7 128
----- -----
Basin Index (%) 149 128
SHOSHONE RIVER
BLACKWATER 9780 28.6 19.4 147 25.7 17.4 148
EVENING STAR 9200 35.0 21.2 165 34.2 23.6 145
MARQUETTE 8760 11.3 -M * 11.0 -M *
SYLVAN ROAD 7120 14.7 10.1 146 18.8 14.7 128
YOUNTS PEAK 8350 -M 12.5 * -M 13.6 *
----- -----
Basin Index (%) 154 141
POWDER RIVER
BEAR TRAP MEADOW 8200 9.2 4.7 196 9.2 6.7 137
CLOUD PEAK RESERVOIR 9860 16.7 12.0 139 14.7 10.5 140
GRAVE SPRINGS 8550 10.0 7.6 132 10.2 8.5 120
HANSEN SAWMILL 8360 8.3 5.2 160 10.8 6.6 164
MIDDLE POWDER 7760 13.5 9.0 150 11.1 9.5 117
POWDER RIVER PASS 9480 13.8 8.6 160 14.5 10.3 141
SOLDIER PARK 8720 10.7 -M * 9.5 -M *
----- -----
Basin Index (%) 152 135
TONGUE RIVER
BIG GOOSE 7990 9.5 7.1 134 11.5 8.5 135
BONE SPRINGS DIV 9350 17.8 13.4 133 14.3 12.7 113
BURGESS JUNCTION 7880 12.1 9.3 130 12.9 9.8 132
DOME LAKE 8880 12.4 9.5 131 11.5 10.8 106
LITTLE GOOSE 8870 10.9 -M * 13.6 -M *
SUCKER CREEK 8880 14.3 10.2 140 15.7 11.5 137
TIE CREEK 6870 7.1 4.7 151 12.1 9.1 133
----- -----
Basin Index (%) 135 125
BELLE FOURCHE
COLE CANYON 5910 6.7 5.2 129 12.5 7.5 167
----- -----
Basin Index (%) 129 167
CHEYENNE RIVER BASIN
BLIND PARK 6890 8.6 6.9 125 15.3 10.1 151
NORTH RAPID CREEK 6130 8.5 6.4 133 13.9 8.2 170
----- -----
Basin Index (%) 129 160
UPPER N. PLATTE
ARAPAHO RIDGE 10960 24.5 17.9 137 24.1 18.9 128
BLACKHALL MTN 9820 33.1 -M * 28.0 -M *
COLUMBINE 9160 31.7 21.3 149 -M 22.0 *
DIVIDE PEAK 8880 17.3 17.1 101 20.3 18.2 112
JOE WRIGHT 10120 18.6 18.6 100 28.4 21.8 130
LAPRELE CREEK 8375 7.5 8.7 86 9.0 10.2 88
MED BOW 10500 10.8 -M * 33.9 -M *
NORTH FRENCH CREEK 10130 29.9 23.5 127 29.9 22.8 131
NEVER SUMMER 10280 21.8 17.2 127 16.8 -M *
OLD BATTLE 10000 30.0 25.9 116 33.3 30.1 111
RAWAH 9020 12.9 9.3 139 15.3 11.6 132
SAGE CREEK BASIN 7850 11.3 11.8 96 11.1 12.5 89
SAND LAKE 10050 28.8 23.0 125 27.8 20.6 135
SOUTH BRUSH CREEK 8440 10.8 11.2 96 12.7 12.7 100
TOWER 10500 46.8 38.6 121 -M 34.2 *
WEBBER SPRINGS 9250 23.4 20.3 115 25.5 22.9 111
WILLOW CREEK PASS 9540 13.1 10.4 126 13.3 11.2 119
ZIRKEL 9340 38.4 25.3 152 23.0 24.7 93
----- -----
Basin Index (%) 122 115
SWEETWATER
DEER PARK 9700 15.1 12.3 123 17.2 16.4 105
LARSEN CREEK 9000 12.9 10.5 123 14.8 -M *
SOUTH PASS 9040 15.1 12.7 119 14.0 14.7 95
----- -----
Basin Index (%) 121 100
LOWER N. PLATTE
CASPER MTN. 7900 15.3 11.6 132 13.6 12.1 112
LAPRELE CREEK 8375 7.5 8.7 86 9.0 10.2 88
RENO HILL 8400 14.7 11.4 129 16.8 12.2 138
WINDY PEAK 7900 7.5 6.7 112 10.0 8.6 116
----- -----
Basin Index (%) 117 115
LARAMIE RIVER
BROOKLYN LAKE 10240 27.7 17.1 162 26.4 17.6 150
CINNABAR PARK 9574 21.1 17.8 119 20.5 20.7 99
CROW CREEK 8330 6.5 7.1 92 10.2 8.5 120
DEADMAN HILL 10220 22.0 13.2 167 20.1 14.2 142
RAWAH 9020 12.9 9.3 139 15.3 11.6 132
ROACH 9700 -M 13.5 * -M 16.1 *
----- -----
Basin Index (%) 140 127
S. PLATTE
BLACK MOUNTAIN 8920 10.9 -M * 11.5 -M *
CROW CREEK 8330 6.5 7.1 92 10.2 8.5 120
DEADMAN HILL 10220 22.0 13.2 167 20.1 14.2 142
----- -----
Basin Index (%) 140 133
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.3 10.7 106 15.2 13.1 116
DIVIDE PEAK 8880 17.3 17.1 101 20.3 18.2 112
ELK RIVER 8700 19.8 17.0 116 20.0 17.2 116
LITTLE SNAKE RIVER 8915 27.7 20.4 136 31.6 26.0 122
OLD BATTLE 10000 30.0 25.9 116 33.3 30.1 111
SAGE CREEK BASIN 7850 11.3 11.8 96 11.1 12.5 89
SANDSTONE RS 8150 11.0 11.7 94 16.1 16.1 100
WHISKEY PARK 8950 36.2 23.6 153 35.1 24.1 146
----- -----
Basin Index (%) 119 116
UPPER GREEN RIVER
BIG SANDY OPENING 9080 14.7 10.9 135 13.9 11.3 123
BLIND BULL SUM 8650 34.1 19.7 173 22.3 17.0 131
EAST RIM DIVIDE 7930 16.6 9.5 175 14.6 10.2 143
ELKHART PARK G.S. 9400 16.7 10.2 164 15.8 11.3 140
GROS VENTRE SUMMIT 8750 14.2 11.0 129 14.0 11.0 127
GUNSIGHT PASS 9820 19.1 11.7 163 17.5 11.7 150
KENDALL R.S. 7740 21.8 10.7 204 -M 12.6 *
LOOMIS PARK 8240 23.4 12.8 183 23.4 15.0 156
NEW FORK LAKE 8340 15.5 9.1 170 13.1 9.4 139
POCKET CREEK 9360 12.2 -M * 12.1 -M *
SNIDER BASIN 8060 18.7 10.7 175 18.3 12.3 149
SPRING CREEK DIVIDE 9000 32.9 19.8 166 30.0 20.6 146
TRIPLE PEAK 8500 33.1 18.8 176 34.3 21.8 157
----- -----
Basin Index (%) 168 143
LOWER GREEN RIVER
BLACKS FORK JCT 8870 7.7 -M * 11.9 -M *
BUCK PASTURE 9700 13.0 -M * 14.8 -M *
EF BLACKS FORK GS 9360 9.0 -M * 9.1 -M *
HAMS FORK 7840 15.0 10.0 150 13.0 9.7 134
HEWINTA 9519 9.7 8.8 110 12.3 11.7 105
HICKERSON PARK 9145 6.7 6.5 103 7.7 8.3 93
HOLE-IN-ROCK 9150 6.0 6.2 97 7.9 7.7 103
INDIAN CREEK 9425 29.9 20.5 146 24.7 19.1 129
KELLEY R.S. 8180 17.6 12.8 138 19.5 15.5 126
SPIRIT LK 10235 8.3 -M * 11.5 -M *
STEEL CREEK PARK 10200 16.6 12.8 130 14.4 13.5 107
----- -----
Basin Index (%) 131 116
UPPER BEAR RIVER
BEAR RIVER RS 8777 9.6 -M * 11.0 -M *
BUG LAKE 7950 21.1 16.3 129 18.4 16.6 111
BURTS MILLER RANCH 8000 7.0 -M * 5.9 -M *
CHALK CREEK #1 8993 20.3 20.3 100 20.2 21.1 96
HAYDEN FORK 9212 14.7 13.8 107 18.2 17.7 103
KELLEY R.S. 8180 17.6 12.8 138 19.5 15.5 126
LILY LAKE 9156 12.5 11.2 112 13.7 14.3 96
MONTE CRISTO 8960 24.8 23.2 107 22.7 22.1 103
SALT RIVER SUMMIT 7760 17.3 11.4 152 18.0 14.4 125
----- -----
Basin Index (%) 118 107
-----------------------------------------------------------------------------
-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
Provisional data, subject to revision.
* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.
----------------------------------------------------------------------------
-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
Provisional data, subject to revision.
* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.